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Tissue and towel products containing crosslinked cellulosic fibers

a technology of crosslinked cellulosic fibers and towel products, which is applied in the directions of non-fibrous pulp addition, transportation and packaging, natural mineral layered products, etc., can solve the problems of reducing sheet strength, reducing hemicellulose content, and reducing hemicellulose content, so as to achieve high hemicellulose content, bulk and absorbent capacity, and high hemicellulose content

Inactive Publication Date: 2005-01-04
INT PAPER CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a fibrous product made of crosslinked cellulosic fibers and softwood kraft pulp fibers with high hemicellulose content. This fibrous product has both bulk and absorbent capacity, as well as sheet strength and liquid wicking. The methods for making this fibrous product are also provided. Representative examples of fibrous products include tissue and towel products.

Problems solved by technology

One drawback to a typical cellulosic tissue or towel product is that the product can have a relatively high density or low bulk.
However, the addition of crosslinked cellulosic fibers to such sheets tends to diminish sheet strength.

Method used

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  • Tissue and towel products containing crosslinked cellulosic fibers
  • Tissue and towel products containing crosslinked cellulosic fibers
  • Tissue and towel products containing crosslinked cellulosic fibers

Examples

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Embodiment Construction

In one aspect, the present invention provides a fibrous product that includes crosslinked cellulosic fibers. In addition to crosslinked cellulosic fibers, the product also includes softwood fibers prepared by the kraft process (i.e., softwood kraft pulp fibers) having a high hemicellulose content compared to other kraft softwood fibers and hardwood fibers. The softwood kraft pulp fibers having a high hemicellulose content and hardwood fibers impart strength to the fibrous product. Without being bound to the theory, it is believed that the advantageous bulk imparted to the fibrous product of the invention by the incorporation of crosslinked cellulosic fibers is accompanied by a diminution of sheet strength, which is returned to the fibrous product by the inclusion of softwood kraft pulp fibers having high hemicellulose content and hardwood fibers.

The fibrous product of the invention can be a facial tissue, toilet tissue, disposable wipe, napkin, handkerchief, or paper towel. The fibr...

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Abstract

Tissue and towel products that include crosslinked cellulosic fibers. Methods for making tissue and towel products that include crosslinked cellulosic fibers.

Description

FIELD OF THE INVENTIONThe present invention relates to tissue and towel products containing crosslinked cellulosic fibers and methods for their manufacture.BACKGROUND OF THE INVENTIONTissue and towel products made from cellulosic fibers are advantageous because they are biodegradable, are made from a renewable resource, and can be recycled. One drawback to a typical cellulosic tissue or towel product is that the product can have a relatively high density or low bulk. Bulk is the reciprocal of density and is the volume occupied by a specific weight of material and is designated in cm3 / g. The amount of cellulosic material required to provide the requisite strength for a typical tissue or towel product creates a heavy product.Crosslinked cellulosic fibers impart bulk to cellulose sheets that include such fibers. However, the addition of crosslinked cellulosic fibers to such sheets tends to diminish sheet strength.The need exists for improved tissue and towel products, particularly tiss...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): B32B29/00D21H27/30D21H11/00D21H21/20D21H11/04D21H21/14D21H11/20D21F11/14D21H11/02D21H27/00D21H27/38
CPCB32B29/00D21F11/14D21F11/145D21H11/00D21H27/30Y10T428/29D21H11/20D21H21/20D21H27/38D21H11/04Y10T428/31989Y10T428/31993
Inventor MARSH, DAVID G.
Owner INT PAPER CO
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